What a handsome kitty! I’m pondering maybe there’s some British Shorthair in him. He has a pleasant, round head, and large cheeks, and what looks to generally be quite thick fur. Amyloidosis. In this particular problem, amyloid protein deposits build up in your pet's organs, like the liver and kidneys. https://remingtonbulbh.nizarblog.com/35819529/the-sphynx-diaries